Electric motor 15 kW, 1475 rpm, 400 V / 690 V, 4LC-160L-4 LV

When choosing a motor for pumps, fans, compressors and heavier-duty operation, it is worth opting for a solution that can withstand long-term load, a low-voltage infrastructure and, at the same time, does not increase energy costs. The 4LC-160L-4 model with an output of 15 kW falls within the speed class of 1400-1500 rpm and, in practice, delivers operation suited to steady load, where reliability and operating economy are decisive. Thanks to IE4 efficiency, it can reduce energy losses by approximately 15 % to 20 % compared with the IE3 class, which makes a noticeable difference to total costs in long operating periods. This three-phase motor is designed for operators who expect super-premium efficiency without compromising mechanical durability.

Economical operation in continuous service within the 1400-1500 rpm speed class

A speed of 1475 rpm and a power factor of 0.84 create a balanced basis for drives where smooth running and efficient use of electrical energy are important. An efficiency of 93.9 % helps keep losses low and, under stable load, this is particularly evident in the long term. The rated current at a delta connection of 400 V is 26.8 A and at a star connection of 690 V it is 15.54 A, which makes sizing the switchboard and protective devices in the network easier. The starting torque ratio Tst/Tn 2 and the breakdown torque ratio Tmax/Tn 2.3 support reliable starting in process equipment with higher resistance at start-up. The starting current ratio Ist/In 9.5 must be taken into account when designing the power supply, especially if the motor operates with frequent starts or in networks with limited reserve.

Construction that better withstands vibration and aggressive environments

The all-cast-iron design with a 160 mm frame is suitable where vibration, mechanical stress and contact with more demanding surroundings are expected. The robust cast-iron construction increases the rigidity of the assembly and helps dampen unwanted vibrations, which benefits both the bearings and the precision of mounting in the drive. Noise level of 73 dB(A) remains at a level that can be easily integrated into industrial operation with standard safety measures. The rotor moment of inertia of 0.1 kg*m² supports a predictable start-up and stopping process, which is especially appreciated by technicians when setting process cycles. The DE and NDE bearings of type 6309-2RZC3 increase the reliability of the bearing assemblies under long-term load and, with proper maintenance, support stable machine operation.

Connection and installation in industrial assemblies

When installing into technology, the 2-M40X1.5 cable entries make integration easier, offering practical space for safe cable routing. Package dimensions of 822*407*566 mm and a package weight of 162 kg are important for handling, storage and service logistics planning. The 3 PTC thermistors provide additional protection for the winding against excessive heating, which is a valuable element of operational security for pumps and fans. Thanks to these features, the motor is well suited to assemblies where space constraints and drive protection requirements must both be respected.

Use in demanding industrial operations

The motor is suitable for universal industrial applications where stable performance, long service life and reasonable operating costs are required. In practice, it is particularly suitable for the following types of equipment:

• Pumping stations for process water and circulation systems.
• HVAC fans and extraction units.
• Compressor assemblies with medium-duty operation.
• Conveyor drives in production lines.
• Mixing equipment in the processing industry.
• Machines for packaging and automated handling.
• Process units with continuous operation.
• Cleaning and filtration technology with higher load resistance.
• Auxiliary drives in energy production and maintenance operations.
• Large machines in plants with a low-voltage 400 V and 690 V network.

VYBO Electric develops its solutions with an emphasis on technical support, reliable operation and in-house research and development, which is also reflected in configurations for demanding industrial deployment. If you need a motor for stable and economical operation, check whether the motor is suitable for your application and verify that it matches your requirements for starting, load and network conditions.